* include/bits/shared_ptr.h (__enable_shared_from_this_helper): Use
	nullptr.
	* include/bits/shared_ptr_base.h (weak_ptr::_M_assign): Don't assign
	if ownership is already shared with a shared_ptr object.
	(__enable_shared_from_this_helper): Use nullptr.
	* testsuite/20_util/enable_shared_from_this/members/const.cc: New.
	* testsuite/20_util/enable_shared_from_this/members/reinit.cc: New.
	* testsuite/20_util/enable_shared_from_this/requirements/
	explicit_instantiation.cc: Instantiate with const and incomplete types.

From-SVN: r227232

From-SVN: r227231

2015-08-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000-protos.h (rs6000_expand_float128_convert):
	Add declaration.

	* config/rs6000/rs6000.c (rs6000_emit_le_vsx_store): Fix a
	comment.
	(rs6000_cannot_change_mode_class): Add support for IEEE 128-bit
	floating point in VSX registers.
	(rs6000_output_move_128bit): Always print out the set insn if we
	can't generate an appropriate 128-bit move.
	(rs6000_generate_compare): Add support for IEEE 128-bit floating
	point in VSX registers comparisons.
	(rs6000_expand_float128_convert): Likewise.

	* config/rs6000/predicates.md (int_reg_operand_not_pseudo): New
	predicate for only GPR hard registers.

	* config/rs6000/rs6000.md (FP): Add IEEE 128-bit floating point
	modes to iterators. Add new iterators for moving 128-bit values in
	scalar FPR registers and VSX registers.
	(FMOVE128): Likewise.
	(FMOVE128_FPR): Likewise.
	(FMOVE128_GPR): Likewise.
	(FMOVE128_VSX): Likewise.
	(FLOAT128_SFDFTF): New iterators for IEEE 128-bit floating point
	in VSX registers.
	(IFKF): Likewise.
	(IBM128): Likewise.
	(TFIFKF): Likewise.
	(RELOAD): Add IEEE 128-bit floating point modes.
	(signbittf2): Convert TF insns to add support for new IEEE 128-bit
	floating point in VSX registers modes.
	(signbit<mode>2, IBM128 iterator): Likewise.
	(mov<mode>_64bit_dm, FMOVE128_FPR iterator): Likewise.
	(mov<mode>_32bit, FMOVE128_FPR iterator): Likewise.
	(negtf2): Likewise.
	(neg<mode>2, TFIFKF iterator): Likewise.
	(negtf2_internal): Likewise.
	(abstf2): Likewise.
	(abs<mode>2, TFIFKF iterator): Likewise.
	(ieee_128bit_negative_zero): New IEEE 128-bit floating point in
	VSX insn support for negate, absolute value, and negative absolute
	value.
	(ieee_128bit_vsx_neg<mode>2): Likewise.
	(ieee_128bit_vsx_neg<mode>2_internal): Likewise.
	(ieee_128bit_vsx_abs<mode>2): Likewise.
	(ieee_128bit_vsx_abs<mode>2_internal): Likewise.
	(ieee_128bit_vsx_nabs<mode>2): Likewise.
	(ieee_128bit_vsx_nabs<mode>2_internal): Likewise.
	(FP128_64): Update pack/unpack 128-bit insns for IEEE 128-bit
	floating point in VSX registers.
	(unpack<mode>_dm): Likewise.
	(unpack<mode>_nodm): Likewise.
	(pack<mode>): Likewise.
	(unpackv1ti): Likewise.
	(unpack<mode>, FMOVE128_VSX iterator): Likewise.
	(packv1ti): Likewise.
	(pack<mode>, FMOVE128_VSX iterator): Likewise.
	(extenddftf2): Add support for IEEE 128-bit floating point in VSX
	registers.
	(extenddftf2_internal): Likewise.
	(trunctfdf2): Likewise.
	(trunctfdf2_internal2): Likewise.
	(fix_trunc_helper): Likewise.
	(fix_trunctfdi2"): Likewise.
	(floatditf2): Likewise.
	(floatuns<mode>tf2): Likewise.
	(extend<FLOAT128_SFDFTF:mode><IFKF:mode>2): Likewise.
	(trunc<IFKF:mode><FLOAT128_SFDFTF:mode>2): Likewise.
	(fix_trunc<IFKF:mode><SDI:mode>2): Likewise.
	(fixuns_trunc<IFKF:mode><SDI:mode>2): Likewise.
	(float<SDI:mode><IFKF:mode>2): Likewise.
	(floatuns<SDI:mode><IFKF:mode>2): Likewise.

From-SVN: r227230

	* include/debug/map.h (map::try_emplace, map::insert_or_assign):
	Define.
	* include/debug/unordered_map (unordered_map::try_emplace,
	unordered_map::insert_or_assign): Define.

From-SVN: r227229

	PR libstdc++/66902
	* src/c++11/debug.cc (_S_debug_messages): Give internal linkage.

From-SVN: r227228

    
    The gofrontend would crash after hitting an unreachable state while
    trying to determine the type of an arithmetic expression involving
    non-numeric values.  Instead of crashing, it should fail gracefully
    if the relevant error is already reported.
    
    Fixes golang/go#11537.
    
    Reviewed-on: https://go-review.googlesource.com/13793

From-SVN: r227227

2015-08-26  Renlin Li  <renlin.li@arm.com>

gcc/
	* config/aarch64/aarch64.md (aarch64_bfi): New pattern.

gcc/testsuite/
	* gcc.target/aarch64/combine_bfi_1.c: New.

From-SVN: r227226

2015-08-26  Marcus Shawcroft  <marcus.shawcroft@arm.com>
	    Jiong Wang  <jiong.wang@arm.com>
gcc/
	* config/aarch64/aarch64.md (UNSPEC_GOTTINYTLS): New UNSPEC.
	(tlsie_tiny_<mode>): New define_insn.
	(tlsie_tiny_sidi): Likewise.
	* config/aarch64/aarch64-protos.h (aarch64_symbol_type): Define
	SYMBOL_TINY_TLSIE.
	(aarch64_symbol_context): New comment for SYMBOL_TINY_TLSIE.
	* config/aarch64/aarch64.c (aarch64_load_symref_appropriately): Support
	SYMBOL_TINY_TLSIE.
	(aarch64_expand_mov_immediate): Likewise.
	(aarch64_print_operand): Likewise.
	(arch64_classify_tls_symbol): Likewise.

gcc/testsuite/
	* gcc.target/aarch64/tlsie_tiny_1.c: New testcase.

From-SVN: r227220

2015-08-26  Matthew Wahab  <matthew.wahab@arm.com>

	* config/arm/arm-arches.def: Replace single value flags with
	an initializer built from ARM_FSET_MAKE_CPU1.
	* config/arm/arm-cores.def: Likewise.
	* config/arm/arm.c: (all_cores): Remove ARM_FSET_MAKE_CPU1
	derivation from the ARM_CORE macro definition, use the given value
	instead.
	(all_architectures): Remove ARM_FSET_MAKE_CPU1 derivation from the
	ARM_ARCH macro definition, use the given value instead.

From-SVN: r227219

2015-08-26  Matthew Wahab  <matthew.wahab@arm.com>

	* config/arm/arm-builtins.c (def_mbuiltin): Test all flags in a
	feature set.
	(struct builtin_description): Replace field mask with field
	features.
	(IWMMXT_BUILTIN): Use ARM_FSET macros for feature flags.
	(IWMMXT2_BUILTIN): Likewise.
	(IWMMXT2_BUILTIN2): Likewise.
	(FP_BUILTIN): Likewise.
	(CRC32_BUILTIN): Likewise.
	(CRYPTO_BUILTIN): Likewise.
	(iwmmx_mbuiltin): Likewise.
	(iwmmx2_mbuiltin): Likewise.
	(arm_init_iwmmxt_builtins): Likewise. Also, update for change to
	struct builtin_description.

From-SVN: r227218

2015-08-26  Matthew Wahab  <matthew.wahab@arm.com>

	* config/arm/arm-builtins.c (def_mbuiltin): Use ARM_FSET macro.
	(struct builtin_description): Change type of mask to unsigned
	long.
	* config/arm/arm-protos.h (insn_flags): Declare as type
	arm_feature_set.
	(tune_flags): Likewise.
	* config/arm/arm.c (feature_count): New.
	(insn_flags): Define as type arm_feature_set.
	(tune_flags): Likewise.
	(struct processors): Define field flags as type arm_feature_set.
	(all_cores): Update for change to struct processors.
	(all_architectures): Likewise.
	(arm_option_check_internal): Use arm_feature_set and ARM_FSET
	macros.
	(arm_option_override_internal): Likewise.
	(arm_option_override): Likewise.

From-SVN: r227217

2015-08-26  Jiong Wang  <jiong.wang@arm.com>

gcc/testsuite/
	* gcc.target/aarch64/tlsle_1.x: Rename to tls_1.x
	* gcc.target/aarch64/aarch64/tlsle12_1.c: Update source file name.
	* gcc.target/aarch64/aarch64/tlsle24_1.c: Likewise.
	* gcc.target/aarch64/aarch64/tlsle32_1.c: Likewise.

From-SVN: r227216

2015-08-26  Marcus Shawcroft  <marcus.shawcroft@arm.com>
	    Jiong Wang  <jiong.wang@arm.com>
gcc/
	* config/aarch64/aarch64.c (initialize_aarch64_tls_size): Set default
	tls size for tiny, small, large memory model.
	(aarch64_load_symref_appropriately): Support new symbol types.
	(aarch64_expand_mov_immediate): Likewise.
	(aarch64_print_operand): Likewise.
	(aarch64_classify_tls_symbol): Likewise.
	* config/aarch64/aarch64-protos.h (aarch64_symbol_context): Likewise.
	(aarch64_symbol_type): Likewise.
	* config/aarch64/aarch64.md (tlsle): Deleted.
	(tlsle12_<mode>): New define_insn.
	(tlsle24_<mode>): Likewise.
	(tlsle32_<mode>): Likewise.
	(tlsle48_<mode>): Likewise.
	* doc/sourcebuild.texi (AArch64-specific attributes): Document
	"aarch64_tlsle32".

gcc/testsuite/
	* lib/target-supports.exp (check_effective_target_aarch64_tlsle32):
	New test directive.
	* gcc.target/aarch64/tlsle_1.x: New test source.
	* gcc.target/aarch64/tlsle12_1.c: New testcase.
	* gcc.target/aarch64/tlsle24_1.c: Likewise.
	* gcc.target/aarch64/tlsle32_1.c: Likewise.

From-SVN: r227215

2015-08-26  Matthew Wahab  <matthew.wahab@arm.com>

	* config/arm/arm-protos.h (FL_NONE): New.
	(FL_ANY): New.
	(arm_feature_set): New.
	(ARM_FSET_MAKE): New.
	(ARM_FSET_MAKE_CPU1): New.
	(ARM_FSET_MAKE_CPU2): New.
	(ARM_FSET_CPU1): New.
	(ARM_FSET_CPU2): New.
	(ARM_FSET_EMPTY): New.
	(ARM_FSET_ANY): New.
	(ARM_FSET_HAS_CPU1): New.
	(ARM_FSET_HAS_CPU2): New.
	(ARM_FSET_HAS_CPU): New.
	(ARM_FSET_ADD_CPU1): New.
	(ARM_FSET_ADD_CPU2): New.
	(ARM_FSET_DEL_CPU1): New.
	(ARM_FSET_DEL_CPU2): New.
	(ARM_FSET_UNION): New.
	(ARM_FSET_INTER): New.
	(ARM_FSET_XOR): New.
	(ARM_FSET_EXCLUDE): New.
	(AFM_FSET_IS_EMPTY): New.
	(ARM_FSET_CPU_SUBSET): New.

From-SVN: r227214

2015-08-26  Jiong Wang  <jiong.wang@arm.com>

gcc/
	* config/aarch64/aarch64-protos.h (aarch64_symbol_type): Rename
	SYMBOL_TLSLE to SYMBOL_TLSLE24.
	* config/aarch64/aarch64.c (aarch64_load_symref_appropriately):
	Likewise.
	(aarch64_expand_mov_immediate): Likewise.
	(aarch64_print_operand): Likewise.
	(aarch64_classify_symbol): Likewise.

From-SVN: r227213

2015-08-26  Jiong Wang  <jiong.wang@arm.com>

gcc/
  * config/aarch64/aarch64.opt (mtls-size): New entry.
  * config/aarch64/aarch64.c (initialize_aarch64_tls_size): New function.
  (aarch64_override_options_internal): Call initialize_aarch64_tls_size.
  * doc/invoke.texi (AArch64 Options): Document -mtls-size.

From-SVN: r227212

2015-08-26  Matthew Wahab  <matthew.wahab@arm.com>

	* gcc/config/arm/arm-cores.def: Add FL_FOR_ARCH flag for each
	ARM_CORE entry.  Fix some white-space.
	* gcc/config/arm/arm.c: Remove FL_FOR_ARCH derivation from
	ARM_CORE definition.

From-SVN: r227211

	PR fortran/29600

	* Makefile.am: Add generated/shape_i{1,2}.c
	* Makefile.in: Regenerate.
	* generated/shape_i1.c: New generated file.
	* generated/shape_i2.c: New generated file.
	* generated/shape_i4.c: Regenerate.
	* generated/shape_i8.c: Regenerate.
	* generated/shape_i16.c: Regenerate.
	* gfortran.map (GFORTRAN_1.7): Add _gfortran_shape_{1,2}.
	* m4/shape.m4: Fix parameter type.

	* gfortran.dg/shape_8.f90: New test.

From-SVN: r227210

	* libgfortran.h (show_variables): Remove prototype.
	* runtime/environ.c (print_spaces, var_source, show_integer,
	show_boolean, show_sep, show_string): Remove functions.
	* runtime/main.c (init): Remove dead code.

From-SVN: r227208

2015-08-26  Naveen H.S  <Naveen.Hurugalawadi@caviumnetworks.com>

	* fold-const.c (fold_binary_loc) : Move Optimize 
	root(x)*root(y)	as root(x*y) to match.pd.
	Move Optimize expN(x)*expN(y) as expN(x+y) to match.pd.
	Move Optimize pow(x,y)*pow(x,z) as pow(x,y+z) to match.pd.
	Move Optimize a/root(b/c) into a*root(c/b) to match.pd.
	Move Optimize x/expN(y) into x*expN(-y) to match.pd.

	* match.pd (mult (root:s @0) (root:s @1)): New simplifier.
	(mult (POW:s @0 @1) (POW:s @0 @2)) : New simplifier.
	(mult (exps:s @0) (exps:s @1)) : New simplifier.
	(rdiv @0 (root:s (rdiv:s @1 @2))) : New simplifier.
	(rdiv @0 (exps:s @1)) : New simplifier.

From-SVN: r227207

From-SVN: r227206

	* configure.ac: Only compile with -fPIC if the target
	supports it.
	* configure: Regenerate.

From-SVN: r227203

    
    Fixes golang/go#11529.
    
    Reviewed-on: https://go-review.googlesource.com/13790

From-SVN: r227201

	* gcc.c (driver::finalize): Only assign to extra_specs if
	[EXTRA_SPECS].

From-SVN: r227194

    
    When a numeric literal with leading zeroes was seen in the parser, it
    would only be accepted if it were a valid hex or octal literal.  Any
    invalid numeric literal would be split up into multiple tokens: the
    valid hex/octal literal followed by the rest of the characters.
    Instead, when scanning a numeric literal with leading zeroes, always
    accept the number and give an appropriate error if the accepted number
    does not fit in the expected base.
    
    Fixes golang/go#11532, golang/go#11533.
    
    Reviewed-on: https://go-review.googlesource.com/13791

From-SVN: r227193

    
    Avoid an off-by-one error when checking the start index of a string
    slice by allowing the start index to be the string length instead
    of the string length - 1.
    
    Fixes golang/go#11522.
    
    Reviewed-on: https://go-review.googlesource.com/13030

From-SVN: r227191

	PR middle-end/67330
	* varasm.c (declare_weak): Return after giving an error.

	* c-common.c (handle_weak_attribute): Don't check whether the
	visibility can be changed here.

	* gcc.dg/weak/weak-18.c: New test.

From-SVN: r227190

2015-08-24  François Dumont  <fdumont@gcc.gnu.org>

	PR libstdc++/60519
	* include/debug/formatter.h (_Debug_msg_id::__msg_irreflexive_ordering):
	New enum entry.
	* include/debug/functions.h (_Irreflexive_checker): New.
	(__is_irreflexive, __is_irreflexive_pred): New.
	* include/debug/macros.h
	(__glibcxx_check_irreflexive, __glibcxx_check_irreflexive_pred): New
	macros.
	(__glibcxx_check_irreflexive2, __glibcxx_check_irreflexive_pred2): New
	macros limited to post-C++11 mode.
	* include/debug/debug.h
	(__glibcxx_requires_irreflexive, __glibcxx_requires_irreflexive_pred):
	New macros, use latter.
	(__glibcxx_requires_irreflexive2, __glibcxx_requires_irreflexive_pred2):
	Likewise.
	* include/bits/stl_algo.h
	(partial_sort_copy): Add irreflexive debug check.
	(partial_sort_copy): Likewise.
	(lower_bound): Likewise.
	(upper_bound): Likewise.
	(equal_range): Likewise.
	(binary_search): Likewise.
	(inplace_merge): Likewise.
	(includes): Likewise.
	(next_permutation): Likewise.
	(prev_permutation): Likewise.
	(is_sorted_until): Likewise.
	(minmax_element): Likewise.
	(partial_sort): Likewise.
	(nth_element): Likewise.
	(sort): Likewise.
	(merge): Likewise.
	(stable_sort): Likewise.
	(set_union): Likewise.
	(set_intersection): Likewise.
	(set_difference): Likewise.
	(set_symmetric_difference): Likewise.
	(min_element): Likewise.
	(max_element): Likewise.
	* include/bits/stl_algobase.h
	(lower_bound): Likewise.
	(lexicographical_compare): Likewise.
	* include/bits/stl_heap.h
	(push_heap): Likewise.
	(pop_heap): Likewise.
	(make_heap): Likewise.
	(sort_heap): Likewise.
	(is_heap_until): Likewise.
	* testsuite/25_algorithms/lexicographical_compare/debug/
	irreflexive_neg.cc: New.
	* testsuite/25_algorithms/lower_bound/debug/irreflexive.cc: New.
	* testsuite/25_algorithms/partial_sort_copy/debug/irreflexive_neg.cc:
	New.

From-SVN: r227189

gcc/ChangeLog:
	* gcc-main.c (main): Add params to driver ctor.
	* gcc.c (class env_manager): New.
	(env): New global.
	(env_manager::init): New.
	(env_manager::get): New.
	(env_manager::xput): New.
	(env_manager::restore): New.
	Poison getenv and putenv.
	(DEFAULT_TARGET_SYSTEM_ROOT): New.
	(target_system_root): Update initialization to use
	DEFAULT_TARGET_SYSTEM_ROOT.
	(struct spec_list): Add field "default_ptr".
	(INIT_STATIC_SPEC): Initialize new field "default_ptr".
	(init_spec): Likewise.
	(set_spec): Clear field "default_ptr".
	(read_specs): Free "spec" and "buffer".
	(xputenv): Reimplement in terms of env_manager.
	(process_command): Replace ::getenv calls with calls to the
	env_manager singleton.
	(process_brace_body): Free string in three places.
	(driver::driver): New.
	(driver::~driver): New.
	(used_arg): Convert from a function to...
	(class used_arg_t): ...this class, and...
	(used_arg): ...this new global instance.
	(used_arg_t::finalize): New function.
	(getenv_spec_function): Add "const" to local "value".  Replace
	::getenv call with call to the env_manager singleton.
	(path_prefix_reset): New function.
	(driver::finalize): New function.
	* gcc.h (driver::driver): New.
	(driver::~driver): New.
	(driver::finalize): New.

gcc/jit/ChangeLog:
	* docs/cp/topics/contexts.rst
	(gccjit::context::set_bool_use_external_driver): New.
	* docs/internals/test-hello-world.exe.log.txt: Update.
	* docs/topics/compatibility.rst (LIBGCCJIT_ABI_5): New.
	* docs/topics/contexts.rst
	(gcc_jit_context_set_bool_use_external_driver): New.
	* jit-common.h (enum inner_bool_option): Add
	INNER_BOOL_OPTION_USE_EXTERNAL_DRIVER.
	* jit-playback.c (gcc_driver_name): New global.
	(gcc:jit::playback::context::invoke_driver): Split out second
	half into...
	(gcc::jit::playback::context::invoke_embedded_driver): ...this new
	function, and...
	(gcc::jit::playback::context::invoke_external_driver): ...this new
	function.
	* jit-playback.h
	(gcc::jit::playback::context::get_inner_bool_option): New.
	(gcc::jit::playback::context::invoke_embedded_driver): New.
	(gcc::jit::playback::context::invoke_external_driver): New.
	* jit-recording.c (inner_bool_option_reproducer_strings):
	Add entry for INNER_BOOL_OPTION_USE_EXTERNAL_DRIVER.
	* libgccjit++.h
	(gccjit::context::set_bool_use_external_driver): New.
	* libgccjit.c (gcc_jit_context_set_bool_use_external_driver): New.
	* libgccjit.h (gcc_jit_context_set_bool_use_external_driver): New.
	(LIBGCCJIT_HAVE_gcc_jit_context_set_bool_use_external_driver):
	New.
	* libgccjit.map (LIBGCCJIT_ABI_5): New.
	* notes.txt: Show invocation of embedded copy of driver.
	* docs/internals/test-hello-world.exe.log.txt: Update

gcc/testsuite/ChangeLog:
	* jit.dg/test-error-pr63969-missing-driver.c: Add call to
	gcc_jit_context_set_bool_use_external_driver.

From-SVN: r227188

From-SVN: r227187

From-SVN: r227186

	* optabs.c (emit_indirect_jump): Don't try an emit a jump if the
	target doesn't have one.

From-SVN: r227185

    
    Fixes golang/go#11546.
    
    Reviewed-on: https://go-review.googlesource.com/13795

From-SVN: r227184

"*ior<mode>_mask" is a define_insn_and_split, so it shouldn't use
can_create_pseudo in its instruction condition, because IRA can then
create such an instruction, and the condition becomes false before
the insn is split.  Use a scratch instead.


2015-08-25  Segher Boessenkool  <segher@kernel.crashing.org>

	PR target/67346
	* config/rs6000/rs6000.md (*ior<mode>_mask): Use a match_scratch.

From-SVN: r227183

The "*and<mode>3_imm_dot_shifted" pattern is a define_insn_and_split,
like most "dot" patterns: if its output is not assigned cr0 but some
other cr reg, it splits to a non-dot insn and a compare.

Unfortunately that non-dot insn will clobber cr0 as well.  We could
add another clobber (with "=X,x"), but then that second alternative
is never useful; instead, just remove that second alternative.


2015-08-25  Segher Boessenkool  <segher@kernel.crashing.org>

	PR target/67344
	* config/rs6000/rs6000.md (*and<mode>3_imm_dot_shifted): Change to
	a define_insn, remove second alternative.

From-SVN: r227182

	* io/unit.c (get_internal_unit): Make default sign mode unspecified.
	(init_units): Make default sign mode unspecified.

From-SVN: r227178

	* gcc.dg/20001117-1.c: Needs return_address.
	* gcc.dg/20020415-1.c: Needs alloca.
	* gcc.dg/graphite/id-pr44676.c: Needs profiling.
	* gcc.dg/graphite/pr60979.c: Needs nonlocal_goto
	* gcc.dg/pr63186.c: Needs label_values.
	* gcc.dg/torture/pr33848.c: Likwise.

	* lib/target-supports.exp (check_effective_target_fopenacc,
	check_effective_target_fopenmp): Disable for nvptx.
	* gcc.dg/graphite/run-id-pr47653.c: Disable for nvptx.
	* gcc.dg/stack-usage-1.c: Likewise.
	* gcc.dg/stack-usage-2.c: Likewise.
	* gcc.dg/unused-5.c: Likewise.
	* gcc.dg/unwind-1.c: Likewise.

From-SVN: r227177

From-SVN: r227174

This patch, extracted from a larger change on gomp-4_0-branch, expands
a comment documenting struct switchstr in gcc.c.

2015-08-25  Thomas Schwinge  <thomas@codesourcery.com>
	    Joseph Myers  <joseph@codesourcery.com>

	* gcc.c (struct switchstr): Expand comment.

Co-Authored-By: Joseph Myers <joseph@codesourcery.com>

From-SVN: r227173

	* config/nvptx/nvptx.c (nvptx_write_function_decl): Reformat.
	(nvptx_reorg_subreg): Pass insn pattern to asm_operands.

From-SVN: r227169